DE19925678A1 - Square pin to transmit rotation between at least one door or window handle and lock nut has spring to limit axial movement fixed between handle and door nut, fitted to control expansion force - Google Patents

Abstract

The pin (11) moves axially inside a door or window handle and inside a lock nut. A spring (13) arranged on the pin has its axial movement limited at a first end (15) and is compressible along the pin at a second end (17). To control an axial expansion force between the handle and the nut, the second end of the spring lies directly or indirectly at an end face of the handle and the first end of the spring lies directly or indirectly at the nut.

Description

The invention relates to a square pin for the transmission of a Drehbe movement between at least one door or window handle and one Lock nut, the square pin inside the door or window handle and is movable in the axial direction within the lock nut.

In contrast to square pins, such a square pin forms the the door or window handle are permanently mounted or molded, your own loose component. This structure can be found particularly in so-called semi-garni Doors in which the lock nut only with one, on one Side of the door or window arranged handle should be connected. Here the problem may arise that the square pin is lacking sufficient axial fixation unintentionally along its longitudinal direction wanders out of engagement with the lock nut or with the door or window handle.

It is an object of the invention to provide a square pin, the ge against unintentional axial movement relative to the lock nut or Door or window handle is secured.

This task is for a square pin of the type mentioned solved by a spring arranged on the square pin, the axial Movement relative to the square pin is limited at a first end and compressible at a second end along the square pin is, to exert an axial spreading force between the door or  Window handle and the lock nut one of the two ends of the spring for di right or indirect concerns on an axial end face of the door or Window handle and the other of the two ends for direct or indi right concern is provided on the lock nut.

The spring thus defines the position of the square pin relative to the lock nut and to the door or window handle, and it secures this position. Therefor the spring is arranged in that chamber or in that cavity which or the standard for doors in the door profile, for example, as a double space between a mortise lock having the lock nuts and the door surface is provided. The depth of this chamber or the This cavity is usually referred to as the x-dimension of the door profile.

When assembled, the set of square pin, lock nut and Door or window handle is the spring within the profile chamber or Cavity compressed. That fixed with respect to the square pin The first end of the spring defines the position of the spring and thus the Square pin by this first spring end due to the com primed spring exerted spreading force immediately or at least indi rect either on the lock nut or on the facing end of the Door or window handle is present. The second, free end of the spring is in contact the other element of the set, i.e. on the door or window handle or on the lock nut. The compressed spring takes over the first end fixed to the square pin a predetermined position and maintains this position due to the between the two spring ends resulting spreading force.  

An advantage of the invention is therefore that the square pin not inadvertently in the axial direction from the lock nut or from the Door or window handle releases. The connection between the lock nut and door or window handle is permanently secured without it being one externally operated fixative, such as one of the four Edge pin requires a radially acting grub screw.

As a result, the door or fen stergriff and the square pin can be provided as separate components. This has the advantage that an adaptation to different x dimensions, ie different chamber or cavity depths only by corresponding Choosing the length of the square pin can be made; against it the door or window handle must be designed independently of the x dimension, which contributes to a considerable reduction in the number of parts.

An adaptation of a set with a square pin according to the invention Any x-dimensions are therefore already possible in that different Lengths of the square pin, for example, at intervals of 10 mm will be seen, but experience has shown that only three different ones Lengths of the assigned spring are sufficient.

The invention finds advantageous application in any doors and Windows made of wood, plastic or metal. While using at Half sets are preferred, the square pin according to the invention also for full sets with two door handles on which the square pin is not permanently attached or molded, an unintentional axial Ver Avoid slipping or hiking.  

In a preferred embodiment, the spring is designed as a spiral spring forms the at least in the compressed state explained Square pin with its spiral turns surrounds. Such a coil spring is able to exert the desired spreading force in the axial direction rend a lateral or radial evasion of the spring by the in their Interior square pin is prevented. Such a game ralfeder can be easily placed on the square pin. Au In addition, it can be a particularly inexpensive commercially available Act coil spring.

It is further preferred if the square pin is a limiting element through which the first end of the spring relative to the square pin is fixed. In particular, the limiting element can be one of the Spreading force of the spring resulting axial movement of the square pin ge limit the lock nut or the door or window handle and thus define the installation position of the square pin.

The limiting element is preferably by a limiting disk formed, which surrounds the square pin along its circumference, and on the the first end of the spring rests. This washer can one have a round outer circumference to ensure even pressure distribution the lock nut or the door or window handle on the one hand and on which he Most end of the spring, especially the coil spring, on the other hand to ge guarantee.

A particularly simple attachment of the limiting disk mentioned on the square pin results when the square pin cuts has and the boundary disc one the outline of this incision  has a corresponding central opening so that the limiting disc in the cut of the square pin are used and for example with can lock this. The incision can be made on the square pin for example as a circumferential ring groove or as just the four longitudinal edges incision breaking through the square pin.

The aforementioned central opening of the limiting disk preferably corresponds to the cross section of the square pin and the circumference of the incision formed thereon. For example, the central opening of the limiting disk can be round, but deviations in the cross section of the square pin at the incision from a pure circular shape can be taken into account by corresponding bulges in the outline of the opening. For example, the square pin can be provided with a spring plate that runs flat along a longitudinal edge of the square pin to ensure a particularly play-free fit of the square pin within the lock nut or the door or window handle. If such a spring plate also extends beyond the incision mentioned, the central opening of the limiting disk to be inserted into the incision can have a corresponding radial bulge (cf. FIG. 5).

As an alternative to the explained insertion of the limiting disk in a Incision on the square pin can also be the limiting element molded or otherwise attached to the square pin, for example be welded. Furthermore, instead of the limiting disk as Be boundary element also a radially protruding from the square pin Limiting pin or hook can be provided.  

The first end of the spring fixed with respect to the square pin can be on place a mere concern on the boundary element - on the four Edge pin locked directly or indirectly via the limiting element or be permanently attached. Such attachment of the spring on the Square pin makes handling easier when installing the square pin on the door or window, and it enables delivery of square pin, spring and possibly limiting element as before assembled assembly.

Similar to the limiting disk explained, the second, free At the end of the spring, an intermediate ring should be attached, which is also one even pressure distribution between the spring end on the one hand and Lock nut or door or window handle on the other hand can serve. To the Sem intermediate ring, the second end of the spring can be locked or permanent be securely attached. The intermediate ring is not absolutely necessary. Al Alternatively to its use, the spring can be used with its second, free End also directly on the facing end of the door or window or touch the lock nut.

Both the limit washer and the intermediate ring can they are inexpensive molded plastic parts.

Further embodiments of the invention are in the subclaims described.

The invention is illustrated below by way of example with reference to FIG Drawings explained; in these show:

Fig. 1 is a square pin according to the invention in a side view;

Fig. 2 shows the square pin shown in FIG. 1 in a front view,

Fig. 3 illustrates the square pin shown in FIG. 1 without a spring, constraint it be intermediate ring and in a top view,

Fig. 4 shows the square pin shown in FIG. 3 in cross section along the plane IV-IV,

Fig. 5, the limiting plate of FIG. 1 in a front view,

Fig. 6, the limiting plate of FIG. 5 along the plane VI-VI in cross-section,

Fig. 7 shows the intermediate ring shown in Fig. 1 in a front view,

Fig. 8, the intermediate ring of FIG. 7 in cross section along the plane VIII-VIII, and

Fig. 9 shows the square pin of FIG. 1 in the assembled state in a plan view.

Fig. 1 shows a chamfered pin 11 on its two longitudinal ends, which is provided according to the invention with a spiral spring 13 . The spiral spring 13 surrounds with its spiral windings part of the square pin 11 , and it is already compressed in the representation according to FIG. 1 in a manner not shown in the axial direction. As a result, the Spiralfe of 13 exerts a spreading force between its first end 15 and its second end 17 . The two ends 15 , 17 of the spiral spring 13 open into a limiting disk 19 or an intermediate ring 21 .

Fig. 2 shows the square pin 11, the intermediate ring 21, the rule ring of the Zvi 21 partially hidden coil spring 13 and that of the interim rule ring 21 and partially hidden by the coil spring 13 limiting disc 19 in a front view.

Fig. 3 shows the square pin 11 in a plan view. The square pin 11 has an angled spring plate 23 which extends along a longitudinal edge of the square pin 11 and the two adjacent longitudinal sides of the square pin 11 engages almost flat to the respective longitudinal center plane. The spring plate 23 has diamond-shaped protrusions 25 which protrude over an essentially square cross section of the square pin 11 ( FIG. 4). After insertion of the square pin 11 with spring plate 23 into a lock nut or into an opening of a door or window handle, these bulges 25 ensure a play-free seat against rotational movements.

For receiving the spring plate 23, the cross section of the square pin 11 is located along the spring sheet to the set back 23 having longitudinal edge stepped. To fix the spring plate 23 to the square pin 11 , the spring plate 23 has at its longitudinal ends two bending tabs 27 , which are bent into a conical recess 29 at the respective longitudinal end of the square pin 11 .

As can be seen from FIG. 3, the square pin 11 has an incision 31 running perpendicular to its longitudinal direction. This corresponds to an annular groove interrupted at the longitudinal center planes of the square pin 11 , the diameter of which is slightly larger than the edge length of the cross section of the square pin 11 . The course of the incision 31 is shown in the cross-sectional view of FIG. 4. The limiting disk 19 shown in FIG. 1 can be inserted into the incision 31 .

FIGS. 5 and 6 show the limiter plate 19 in a front view and a sectional view. The limiting disk 19 has a central opening 33rd This is essentially circular, but the opening 33 is ever opened via a radial slot 35 to the round outer circumference of the limiter disk 19 and opens within a segment of 90 ° of its circumference at a right-angled bulge 37 which is provided for receiving the spring plate 23 .

The front side of the limiter plate 19 shown in FIG. 5 has a concentric with the longitudinal axis of the square pin 11 Rundvertie Fung. 39 As apparent from the sectional view of FIG. 6, ver the limiting plate runs on the front side 19 along the circumference of the circular recess 39 a Rastumkragung 41st

FIGS. 7 and 8 show a front view and cross-sectional view of the intermediate ring 21 shown in Fig. 1. The intermediate ring 21 shown front 7 has on its in FIG. A conical depression 43, the depression of a round opens 45th This is separated from the conical recess 43 by a circumferential circular shoulder 47 and opens at the rear of the intermediate ring 21 at a detent 49 .

The conical recess 43 , the circular recess 45 , the circular heel 47 and the locking collar 49 are provided in a concentric arrangement with the longitudinal axis of the square pin 11 .

Fig. 9 shows a plan view of the square pin 1 I according to FIG. 1 pointing half-set after complete assembly on a door. 9, a lock nut 51 of a mortise lock, a profile chamber 53 of the door shown, a rosette 55 fastened to the door and part of a door handle 57 fastened to the door via the rosette 55 are schematically shown in FIG. 9.

The assembly of the square pin 11 according to the invention within a half-set is explained in more detail below:
First, the limiting disk is spread 19 ge at its radial slot 35, 11 placed on the provided with the spring plate 23 Square spindle and pushed axially along the square pin 11 up to the level of the incision 31 so that it snaps into place there.

Thereafter, the coil spring 13 is placed on the square pin 11 such that its first end 15 is latched with the locking collar 41 of the circular recess 39 formed on the limiting disk 19 . Subsequently, the intermediate ring 21 is set on the second end 17 of the coil spring 13, so that the spring end 17 is locked in the circular recess 45 of the intermediate ring 21 with its Rastumkragung 49th The preassembly state of the square pin 11 thus achieved is shown in FIG. 1, the spiral spring 13 being shown compressed in this illustration, for example in order to bring about the explained locking of its two ends 15 , 17 in the respectively assigned circular recess 39 and 45 .

The thus pre-assembled square pin 11 is inserted with the limiting disc 19 ahead through an insertion opening on the door in an insertion direction 59 into the lock groove 51 of the lock already inserted in the door, so that the limiting disc 19 bears against the lock ( Fig. 9). The square pin 11 and at this time still relaxed coil spring 13 are out of the insertion opening of the door.

Then the rosette 55 is placed on the end of the square pin 11 protruding from the door and attached to the door, for example via screws. When this rosette 55 is put on, the spiral spring 13 which initially still protrudes from the door is compressed. The door handle 57 is fastened to the door together with the rosette 55 or after it has been installed.

The final assembled state of the square pin 11 thus achieved is shown in FIG. 9. The compressed coil spring presses the limiting disk 19 and the intermediate ring 21 against the lock nut 51 or against the door handle 57 and the rosette 55 , the position of the square pin 11 being defined by the limiting disk 19 resting on the lock nut 51 . A further insertion of the square pin 11 in the insertion direction 59 into the lock nut 51 is prevented by the limit washer 19 , while a movement of the square pin 11 against the insertion direction 59 only under force against the spreading force of the pre-tensioned on the door handle 57 or the rosette 55 adjacent coil spring 13 can be done. The square pin 11 is thus secured against unintentional wandering or slipping.

The door handle 57 acted upon by the expanding force of the spiral spring 13 is secured against inadvertent detachment from the door against the insertion direction 59 due to a radial engagement 61 by the rosette 55 attached to the door or due to a subsequent latching on the rosette 55 .

The conical recess 43 of the intermediate ring 21 serves to radially center the reception of the door handle 57 . The circular recesses 39 , 45 of the limitation plate 19 and the intermediate ring 21 serve to receive and radially stabilize the coil spring 13 .

Finally, it should be noted that the length L, shown in FIG. 9, of the part of the square pin 11 projecting beyond the limiting disk 19 can be , for example, approximately 16 mm. In addition, the depth of the profile chamber 53 in which the compressed coil spring 13 with the limiting disk 19 and the intermediate ring 21 is ultimately mounted is indicated by X in FIG. 9. This depth X corresponds to the x dimension already mentioned, used as the order size.

Reference list

11

Square pin

13

Coil spring

15

first end of the coil spring

17th

second end of the coil spring

19th

Limiting disc

21

Intermediate ring

23

Spring plate

25th

Bulge of the spring plate

27

Bending tab

29

Tapered recess of the square pin

31

incision

33

central opening of the limiting disk

35

Radial slot

37

Bulge of the opening

39

Circular recess of the limiting disk

41

Latching projection of the limiting disk

43

Conical recess in the intermediate ring

45

Round recess of the intermediate ring

47

Circular paragraph

49

Latching collar of the intermediate ring

51

Lock nut

53

Profile chamber

55

rosette

57

Door handle

59

Direction of insertion

61

radial engagement
L length
X x dimension

Claims (13)

1. Square pin ( 11 ) for transmitting a rotary movement between at least one door or window handle ( 57 ) and a lock nut ( 51 ), the square pin ( 11 ) inside the door or window handle ( 57 ) and within the lock nut ( 51 ) is movable in the axial direction,
characterized by a on the square pin ( 11 ) arranged spring ( 13 ), the axial movement of which is limited relative to the square pin ( 11 ) at one end ( 15 ) and at a second end ( 17 ) along the square pin ( 11 ) is compressible,
whereby to exert an axial spreading force between the door or window handle ( 57 ) and the lock nut ( 51 ) one ( 17 ) of the two ends of the spring ( 13 ) for direct or indirect contact with an axial end face of the door or window handle ( 57 ) and the other right ( 15 ) of the two ends for direct or indirect contact with the lock nut ( 51 ) is provided. 2. Square pin according to claim 1, characterized in that the spring ( 13 ) is designed as a spiral spring which surrounds the square pin ( 11 ) with their Spiralwin applications at least in the compressed state. 3. Square pin according to one of the preceding claims, characterized in that the square pin ( 11 ) has a limiting element ( 19 ) on which the first end ( 15 ) of the spring ( 13 ) abuts and / or by wel ches the first end ( 15th ) the spring ( 13 ) with respect to an axial loading movement relative to the square pin ( 11 ) is fixed. 4. Square pin according to claim 3, characterized in that the limiting element is formed by a limiting disc ( 19 ) on which the first end ( 15 ) of the spring ( 13 ) abuts or is fixed. 5. Square pin according to claim 4, characterized in that the limiting disc ( 19 ) has a round outer circumference and / or a round recess ( 39 ) for receiving the first end ( 15 ) of the spring ( 13 ). 6. Square pin according to claim 4 or 5, characterized in
that the square pin ( 11 ) has a cut ( 31 ) running perpendicular to its longitudinal direction, and
that the limiting disc ( 19 ) has a circumference of the incision ( 31 ) corresponding central opening ( 33 ), at which the loading limit plate ( 19 ) in the incision ( 31 ) of the square pin ( 11 ) is inserted or can be used. 7. Square pin according to claim 6, characterized in that the central opening ( 33 ) of the limiting disk ( 19 ) is at least at least substantially round, in particular with a radial bulge ( 37 ) for receiving a spring plate along the square pin ( 11 ) ( 23 ). 8. Square pin according to one of claims 4 to 7, characterized in that the limiting disc ( 19 ) is radially slotted ( 35 ). 9. Square pin according to one of claims 1 or 2, characterized in that the first end ( 15 ) of the spring ( 13 ) is fixed directly to the square pin ( 11 ). 10. Square pin according to one of the preceding claims, characterized in that an intermediate ring ( 21 ) is provided at the second end ( 17 ) of the spring ( 13 ). 11. Square pin according to claim 10, characterized in that the intermediate ring ( 21 ) has a round recess ( 45 ) for receiving the second end ( 17 ) of the spring ( 13 ) and / or a Ko recess recess ( 43 ) for centering the door or Fen stergriffs ( 57 ) has. 12. Square pin according to one of the preceding claims, characterized in that the first end ( 15 ) of the spring ( 13 ) for bearing against the lock nut ( 51 ) and the second end ( 17 ) for bearing against the axial end face of the door or Window handle ( 57 ) is provided. 13. Square pin according to one of the preceding claims, characterized in that the distance (L) between the first end ( 15 ) of the spring ( 13 ) and that end face of the square pin ( 11 ) which is directed in the same longitudinal direction as the first spring end ( 15 ), between 13 and 19 mm, preferably 16 mm.